Epson AcuLaser C1900 Service Manual page 165

EPSON AcuLaser C1900/AcuLaser C900
Table 3-19. Troubleshooting for Print Quality Problems (continued)
Abnormal Image Cause
Foggy Background Defective developing bias Replace the Engine Board (PWB-A).
Defective OPC Drum
(life has expired)
0951o218
White Line / Black There is scar or damage
Line on the OPC drum
Defective print head
0951o222
Offset Image Defective fusing roller
Defective transfer roller
0951o219
Troubleshooting
Solution
Replace the Photoconductor Unit.
Replace the Photoconductor Unit.
Replace the Print Head Unit.
Replace the Engine Board (PWB-A).
Replace the Fusing Roller.
Replace the Second Transfer Roller.
Replace the Transfer Belt Unit.
Details of Print Quality Trouble and Remedy
Revision B
165